不客氣。
You are very welcome.
You're very welcome.
不用客氣。
Don't mention it.
You are welcome.
No trouble.
不客氣（沒有麻煩）。
Please do not mention it.
請不用客氣。
His answer wants politeness.
他的回答不夠客氣。
Offensive in manner.
不客氣的(沒禮貌的)